Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Team Fortress 2

• Added a checkbox to the Advanced Options dialog that will hide the HUD during freezecam screenshots
  
• Added a checkbox to the Backpack dialog that will colorize items based on their quality
  
• Fixed a server crash exploit caused by invalid player viewangles
  
• Updated the color used for Strange quality items so it doesn't conflict with the color used for Unique quality items